[l1ghtm4n]

Even better than git for publishing, I like the "fork" concept as applied to the more general web. Forget copyright issues for a moment... if you could fork sites here it would allow for really fast site creation where you can build off others' creations.

[zrail]

Ward Cunningham's Smallest Federated Wiki[1] is basically what you describe. To edit a wiki page you have to fork it into your own wiki, which I think automatically creates links and things. It's interesting but I haven't explored it nearly as much as I'm sure it deserves.

[1]: http://wardcunningham.github.io